Door lock



` Filed Sept. 2, 1948 March 24, 1953 H. QUIGLEY 2,632,664

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DOOR Lock Filed sept. 2,1948 2 ,SHEETS- SHEET 2 .1mm-rdn" Hennef Qumev mimi-1 Patented Mar. 24, 1953 DOOR LOCK neiibrt Quigley, Hastings, Mich, assignee tu National llass4 Compensi, Grand Rapids, Mich., 4ciiriiortioii i' Michigan Application September 2, 1.948, Serial No. 47,437

(Cl.l @2r-1169) e claims.

This inventionrelates to a door lock which may be'applied at the free vertical edge .portion of a swinging door and automatically lock the door when it isclosed, withv the bolt of the lock received in a keeper opening or recess on the adjacent door j amb. When the door is `closed and the bolt engaged with the keeper., it is impossible to Yengage the projecting end of the bolt to press or otherwise work it back, to disengage it from .the keeper.

spindle, knobs and roll-backs, the key being used .at'the outer side of the door, but with the lock being readily operated by turning the knob at the` inner side 01E the door. With the invention ,as disclosed, either roll-,back may be actuated to turn it to retract the bolt of the lock; A simplined structure is produced, one which may be economically manufactured and assembled with :resultant economy in production. In practice,

and as shown in an application for a patent, Serial No. 47,438 of even date herewith, a keyoperated means for releasing the lock from the outer side of the door will generally be used.

An understanding of the invention may be had -rom the following description, taken in con-- ynection with the accompanying drawings in which,

Fig. 1 is a vertical section, substantially on the plane of line l of Fig. 2.

Fig. 2 is a longitudinal horizontal section substantially on the plane of line 2=2 of Fig. 1. Fig'. r3 is a, transverse section substantially on the plane of line 3f-3 of Fig. 1.

Fig. 4:` is a perspective view of a movable locking dog which in operative position holds the lock-bolt from retraction, and when automaticallyy moved to inoperative position, frees the bolt for retraction. n

Fig. 5 is a view similar to' Fig. 1, showing4 the position of the parts of the bolt with the door closed.

Figs isa View similar to Fig. 5 with the lock bolt retracted by operation of either roll-back,

Figgf'i is a perspective View of the lock bolt,

v.and the` retractor bars .permanently connected,l

therewith.

Like reference characters refer to iike parte in the different figures of the drawings, and the sectionsV are taken looking in the directions indicated by the arrows associated with th section lines.

rIn the ntchvstructure, a honpw belt housing of sheet metal is used, formed of two halves, lthe outer end portions of which are of semi-cylindrical form with 'inwardly extending 'shoulders 2 at their inner ends, substantially` midway between the ends of the housing. The inner portions 3 of the housing, 'are of 'generally channel shape in cross section, and said sections 3, between their ends, have pposit'ly 4pro ci'ling cylindrical portions 4 which serve as inollntings for rotatable roll-backs'. The two halves of the housing placed together telescope at their outer ends into a `mc'etallic cup 5 which is secured at the rear side f a rectangunr metal ,finte s. When the lock is installed in a door, an opening of a diameter slightly in excess ofthe diameter of the cylindrical outer portion of the housing is bored between the sides f the door atthe free vertical edge thereof, said opening being long enough for the entrance of the housing to bring the plate `6 against the edge of the door, to which it is secured by screws or other fastenings in the usual manner.

' "The boit or ben head 1 1has an indi-nea @ber side which is adapted to ride againstth strike vplate of a keeper on a ldoor lamb. The bottom of the cup 5 and the plate 6 having openings through them for the fbolt l to pass. From the inner end of the bolt "i, two spaced apart retractor bars 8 and S are permanently secured.

.The bars 6 and i) are of iiat metalV and lie in the same vertical plane andare spaced from each other at adjacent edges. Each toward its inner end has a'transverse pin It)r extending therethrough with projecting end portions, one at each side of each b ar, whichy in the assembled latch are engaged by roll-backs, one at each side of the retractor bars. The upper bar 8n at its middle portion and its upper edge is cut away to provide a relatively long recess Il, with a vertical shoulder I2 at the front endl ofthe recess. Ahead of the shoulder l2 and at the same upper edge of the bar 8, a shorter section ,is machined from the bar, leaving a shorter elongated recess 13, with a vertical shoulder I4 at :its front end.

'wo roll-backs l5 are rotatably mounted, one

in each of the sleeves 4 of the *housing described.

viiang'es is notched at spacedl apart points as within the bolt housing.

shown at I1. 'I'he rotation of either roll-back I5 in either direction serves to engage one of the pins I so that the bolt 1 is retracted inwardly. Normally the bolt is moved outwardly to the position shown in Fig. 1 by a coiled compression spring I8 bearing at one end against the back of the bolt, and at its other end against a transverse plate I9 which comes against the inner sides of the housing shoulders 2. 'Ihe plate I9 has suitable openings through it for the retractor bars 8 and 9, and for other parts of the mechanism where needed.

Along side the bolt 1, a projecting iinger 20 at one end of a cylindrical member 2l is located, the finger 20 being substantially semi-circular in cross section, and having a shoulder at its juncture with the member 2|. The shoulder is held against the inner end of the bolt 1 by a relatively light coiled spring 22, the front end portion of which is housed in an axial opening in the member 2|. At the inner end of said member 2l a plate 23 is permanently secured which rides against a side of the bars 3 and 9 and extends between them (Fig. 3).

A pivotally mounted locking dog is housed It is formed from sheet metal and includes an upper bar 24 which, at its outer end andat each side, has downwardly extending cam projections 25 adapted :to embrace the upper retractor bar 8. The bar '24 at its inner end portion, has two flanges 26, `one at each edge extending downwardly, each .continuing in a linger 21 which curves downwardly and inwardly in assembly. The two iingers 21 extend tothe arcuate anges I6 of the two independent roll-backs I and said anges 2S and fingers 21 pass one at each side of lthe retractor bars 8 and 9. Each of the flanges 2S at its inner end has an outwardly turned lug 28, the two lugs passing through openings in opposite sides of the inner sections 3 of the housing (Fig. 2) to pivotally mount the dog on the housing. From the forward edge of one of the flanges 26, an ear 29 is turned to extend downwardly. It has an opening through it for receiving the inner end of a rod 30 which is in axial alinement with the cylindrical member 2l, said rod extending partly through the spring 22.

In the free position of the lock bolt 'I (Fig. 1), the bolt is projected by the spring I8, and the member 20, by the spring 22 to the limit of their outward movement. In such outer position, plate 23 is under one of the cam members 25 and holds the locking dog in upper position so that the shoulder at I2, and the part of the latch bolt below the recess at I3, may pass below the bar 2-'3 of the locking member. Thus the bolt 1 and the member 20 and parts associated therewith are unrestricted in movement, and will move inwardly when the inclined end of the bolt 1 engages with the keeper or striking plate on the door frame. When the bolt 1 is brought into alinement with the opening in the keeper plate, as when the door is fully closed, spring I8 moves the bolt outwardly to its outer limit, but the member 20, at its outer end, having no opening inthe keeper plate to receive it, is held at its inner position as shown in Fig. 5. In that position, the plate 23 is moved back so as to be out of engagement with the cam projection 25 lwith which it was previously engaged. Whereupon the locking dog is moved clockwise under the force of spring 22, to bring the outer end of `the bar 24 into thepath of inward movement of the shoulder I 2 on the retractor bar 8, thereby preventing inward movement of the bolt.

Under such circumstances, the free ends of ngers 21 enter the lowermost recesses I1 in flanges I 6, the plate 23 now being back of the cams 25, and the locking dog rotates in a clockwise direction so that the outer end of the locking dog isback of the shoulder I2. The bolt 1 and the retractor bars 8 and 9 thereupon are prevented from inward movement until the locking dog has been moved counter-clockwise to the position shown in Fig. 6, by operation of either one or the other of the rollbacks I5.

On turning a roll-back I5 in either direction, the ngers 21 associated with the iiange I6 of the roll-back which is operated, rides out of the recess I1 that it is in and against the edge of the flange I6, thereby pivoting the locking dog and causing its outer end to move out of the path of movement of the shoulder I2. The bolt 1 is retracted, and the door thus opened. Upon releasing of the roll-back which has been turned to withdraw the bolt, the parts are forced outwardly to the position shown in Figs. 1 and 2, and the door can be again closed as has been described. Y

The structure described is relatively economical to produce, all the parts being manufactured in accordance with large quantity production methods. Both roll-backs are independently operable, and a turning of either one in either direction will result in a retraction of the bolt.

This invention as defined in the appended claims is to be considered comprehensive of all forms of structure coming within their scope.

I claim:

1. ln a structure as described, an elongated housing having an opening at its outer end, a latch bolt slidably extending through said opening, retractor means connected to said bolt located within and lengthwise of the housing, two independent roll-backs movably mounted on the housing, one at each side of the retractor means, means for moving said retractor means and bolt inwardly on movement of either roll-back in either direction, yielding means normally projecting said bolt outwardly, a locking element movably mounted on said housing engaging at one end with each of said roll-backs and at the other end movable into and out of engagement with the retractor means to lock the bolt against inward movement when in such engagement, and means on each roll-back for independently moving said locking means to a position out of engagement with said retractor means on moving either roll-back in either direction, a continuation of said roll-back movement retracting the latch bolt.

2. In a structure as defined in claim 1, an auxiliary member located at a side of the bolt and having a shoulder against which said bolt engages at its inner end, and means on said auxiliary member in operative engagement with said locking element to hold said element out of engagement with said retractor means when both said latch bolt and auxiliary member are at outer positions, but engaged when only the bolt is at outer'position.

3. In a structure as described, an elongated housing having an opening at its outer end, a latch bolt slidably mounted through said opening, an elongated retractor secured to the latch bolt and extending inwardly therefrom lengthwise of and within the housing, roll-backs rotatably mounted, one at each side of the housing, said roll-backs being one at each side of the retractor, each roll-back at its inner end having an arcuate flange, each flange having spacedapart recesses therein, means carried by the retractor in the path of movement of the ends of said flanges for retracting the latch bolt on independent rotative movement of either rollback, spring means normally moving said bolt and retractor outwardly, a locking member pivotally mounted on and within the housing, said locking member embracing the retractor at both sides thereof, and each side having an inwardly extending linger, one bearing against the outer edge of each of the lianges of said roll-backs, and adapted to enter the recesses therein, the

other end of said locking member extending over the retractor, said retractor having a shoulder behind which the other end of said locking member `is located when said lingers are both in the recesses of said flanges, the turning of either rollback moving said other end of the locking member away from said shoulder and out of its path of movement, whereby the retractor and the bolt connected therewith may be retracted inwardly lengthwise of the housing.

4. A structure as delined in claim 3, and an auxiliary member located along one side of said bolt and adapted to extend outwardly and have its outer end substantially flush with the outer end of the bolt, said member having a shoulder between its ends againstwhich the inner end of said bolt engages, and a transverse member se- -cured at the inner end of ysaid auxiliary member 'means between said auxiliary member and said locking member for normally moving said auxiliary member to outer position and turning said locking member to maintain the fingers thereof against the flanges of the roll-backs, and the forward end thereof in the path of inward movement of saidshoulder on the retractor.

6. A latch comprising, a housing having an open end, a latch bolt slidable through the open end of the housing, a member alongside the latch bolt independently slidable through the open end of the housing, means for locking the latch bolt against inward slidable movement actuated by said member on positioning said member at inner position, and two independently operable rollbacks for retracting the latch bolt by rotation of either roll-back in either direction, each of said roll-backs engaging said locking means when said .locking means is in latch-bolt locking position and adapted to urge said locking means out of 'locking position when said roll-backs are rotated.

7. A latch comprising an elongated housing having an opening at its outer end, a bolt slidyable through said opening movable to retracted or extended positions, spring means normally moving the bolt to extended position, roll-backs rotatively mounted one at each side of the housing, a retractor connected to the bolt located lengthwise of the housing and between said roll-backs, inter-engaging means on the retractor and rollbacks for withdrawing the bolt on rotative movement of either roll-back in either direction, and a pivotally mounted locking means mounted -on said housing between its ends, said locking means located between said roll-backs and bolt, said pivotally mounted locking means having two iingers, one engaging each of said roll-backs, and a forwardly extending part located alongside the retractor, said retractor having a stop-shoulder which at the outer position of the bolt is located outwardly from said locking means, a lost motion connection between said forwardly extending Dart and said locking means for moving the outer end of said locking means into the path of inward movement of said shoulder, and means on the roll-backs for pivotally moving said locking means to move its outer end out of said inward path of movement of said retractor shoulder on rotation of either roll-back in either direction.

8. A latch comprising an elongated housing having an opening at its outer end, a bolt slidably movable through said opening for retraction or extension, resilient means normally moving the bolt to extended position, roll-backs rotatably mounted one on each side of the housing, a retractor connected to the bolt located lengthwise or the housing and between said roll-backs, interengaging means on the retractor and roll-backs for withdrawing the bolt on rotative movement of either roll-back in either direction, and a pivotally mounted locking dog mounted on said housing between its ends, said locking dog located between said roll-backs and bolt, said pivotally mounted locking dog having two fingers, one engaging each of said roll-backs, and a forwardly extending part located along side the retractor, said retractor having a stop shoulder which at the outer position of the bolt is located outwardly from said locking dog, a lost motion connection between said forwardly extending part and said locking dog for moving the outer end of said locking dog into the path of inward movement of said shoulder, and a cam on the roll-backs for pivotally urging said locking dog to move its outer end out of' 'said inward path of movement Yof said retractor shoulder on rotation of either roll-back in either direction.

9. In a latch having a housing, roll-backs and a latch-bolt retractor operated by said roll-backs, the improvement comprising: a pivotally mounted locking dog mounted -between it ends to said housing, said locking dog located adjacent said retractor, said pivotally mounted locking dog having two fingers, one engaging each of said roll-backs, and a forwardly extending part located along side said retractor, said retractor having a stop shoulder which at the outer position of the bolt is located outwardly from said locking dog, a lost motion connection between said forwardlyV extending part and said locking dog for moving the outer end of said locking dog into the path of inward movement of said shoulder, and a cam on the rollbacks for pivotally urging said locking dog to move its outer end out of said inward path of movement of said retractor shoulder on rotation of either roll-back in either direction.

HERBERT QUIGLEY.

REFERENCES CITED The following references are of-record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,720,638 Wread July 9, 1929 1,876,081 Schlage Sept. 6, 1932 2,369,873 Voight Feb. 20, 1945 

